A Key Protection Scheme Based on Secret Sharing for Blockchain-Based Construction Supply Chain System

Abstract

Traditional construction supply chains suffer from extra delays, costs and information wastages due to information intermediaries. Blockchain, a decentralized infrastructure, can provide irreversibility, undeniableness, uniqueness and anonymity for trades. Hence, we first propose a blockchain-based construction supply chain framework to reduce limitations in traditional ones. However, payment security by blockchain must be guaranteed and token assets in accounts must be protected. Although the loss of private keys will not result in the exposure or the modification of records in blockchain due to merkle root and blockheader hash, fake payments can be generated and all tokens in the accounts controlled by the private keys may be stolen by attackers. Existing approaches towards private-key protections include biometric-basic signature schemes, index-hidden private key designs and post-quantum blockchain schemes. Nevertheless, none of them can recover lost private keys. Therefore, we design a private-key distribution protocol in blockchains to preserve security of private keys with key recovery. Specifically, our scheme not only uses secret sharing to improve possibilities of recovering lost keys but also introduces network protocols to guarantee security of secret share transmission. The proposed scheme is then proven secure and feasible both in theoretical and experimental analysis. INDEX TERMS Construction supply chain, private key distribution, blockchain, secret sharing.

When Blockchain Meets Supply Chain: A Systematic Literature Review on Current Development and Potential Applications

“…Traceability [58] and transparency [59] issues are increasingly drawing more attention, and this phenomenon explains the penetration point where blockchain could be applied in SCM. We also found early evidence that these applications may cover various sectors such as the chemical [60], construction [61], [62], airline [63]- [65], and manufacturing [66], [67].…”

Enhancing Vendor Managed Inventory Supply Chain Operations Using Blockchain Smart Contracts

“…Table 1 explains the functions that were used to implement the algorithms discussed earlier. The developed smart contract can be found in the GitHub repository 1 . Furthermore, these functions are illustrated as a series of functions and events in a sequence diagram, as shown in Fig.…”

“…In this section, we discuss key properties of the proposed blockchain VMI solution in addressing major security and privacy concerns that include data integrity, authenticity, availability, accountability, and scalability. In addition, we will consider the robustness of the system against popular cyberattacks such as DDoS attacks [1,33].…”

“…Supply chain broadly encompasses people, resources, activities, and organizations that are involved in transforming raw materials into finished products, fulfilling customer orders both directly and indirectly. The complexities of modern supply chains are exacerbated by many factors, including lack of transparency, disruptions, extra delays, information distortion, and uncertainties [1]. Effective inventory management acts as a critical lever in balancing demand and supply to achieve cost efficiency in the supply chain.…”

Towards Post-Quantum Blockchain: A Review on Blockchain Cryptography Resistant to Quantum Computing Attacks

“…It consists in dividing a piece of sensitive information into multiple parts that are distributed among diverse participants and which can be reconstructed by using a minimum number of parts [238]. For instance, in [8] it is introduced a private-key distribution method to help recover lost private keys that is based in secret sharing and in network protocols that guarantee the security of secret share transmission. Another example can be found in [239], where the authors use secret sharing to distribute transaction data securely among peers in a blockchain.…”